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4. Electrical Inputs and Outputs
The front panel of the M7 GX modem has these features:
1. RF connector
2. Power LED
3. Status LED (Receive data = green, TX = red)
4. 9-Pin Serial I/O connector
5. DC Power Jack
4.1. LEDs
The status LED visually show the current status of the radio.
Status LED (TX)
This LED blinks red when the transmitter keys and is
putting out RF power. It blinks green upon the reception of data or RF
carrier.
Power LED (PWR)
This LED does a short blink, once every two
seconds, indicating to the user that the power to the modem is ON and
the modem is working. When the modem is in the command mode, this
LED will blink on and off, once per second.
When the GPS is trying to acquire satellite lock, the Status and Power
LEDs will alternately blink back and forth. This usually takes 10-20
seconds upon power-up or loss of satellite signal.
4.2. DC Power
DC power for the modem is connected to the 2-pin DC power input jack
labeled DC IN. Use the supplied cable to connect the DC power. The
red wire is positive (+) and the black wire is negative (-). Its
connection is optional, as the user may alternately apply power to Pin 9
and ground to pin 5 of the 9-pin I/O connector. If the power cable run is
over 3 feet long, Raveon recommends at least 18 AWG wire be used.
The M7 modem is supplied with a 6-foot DC power cable, Raveon part
number 1C738-1.
Note: The M7 has in internal 3-amp mini-fuse (automotive type) to
protect it and its power source against reverse voltage and serious
hardware failures.
M7 GX Quick Start Guide
4
Raveon Technologies Corp.
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